High Fidelity State Transfer Over an Unmodulated Linear XY Spin Chain

Abstract

We provide a class of initial encodings that can be sent with a high fidelity over an unmodulated, linear, XY spin chain. As an example, an average fidelity of ninety-six percent can be obtained using an eleven-spin encoding to transmit a state over a chain containing ten-thousand spins. An analysis of the magnetic field dependence is given, and conditions for field optimization are provided.

Replaced with published version. 8 pages, 5 figures

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Cited by in corpus (8)

• Optimal dynamics for quantum-state and entanglement transfer through homogeneous quantum wires
• Quantum-state transfer in spin chains via isolated resonance of terminal spins
• Quantum state transmission in a cavity array via two-photon exchange
• Quantum state transfer in spin chains with q-deformed interaction terms
• General Quantum State Swap: an XY model analysis
• Duplex quantum communication through a spin chain
• Perfect Function Transfer in two- and three- dimensions without initialization
• Quantum states experimentally achieving high-fidelity transmission over a spin chain